Timo Walther created FLINK-23313:
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Summary: Reintroduce temporal table function documentation
Key: FLINK-23313
URL: https://issues.apache.org/jira/browse/FLINK-23313
Project: Flink
Issue Type: Bug
Components: Documentation, Table SQL / API
Reporter: Timo Walther
FLIP-132 introduced the new {{FOR SYSTEM_TIME AS OF}} and dropped the main
documentation for temporal table function. This causes a lot of confusion for
users.
First, because processing time joins are not supported yet.
Second, because a primary key might not always be present in the current
pipeline when using Table API.
We have not deprecated `createTemporalTableFunction` and the documentation in
https://ci.apache.org/projects/flink/flink-docs-release-1.13/docs/dev/table/tableapi/#join-with-temporal-table
is not enough.
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